Matched toDiaphragmbridge.superstructure.secondary_member_system.diaphragmon “Diaphragm”
| The class asks for | Value | How | From |
|---|---|---|---|
| LengthLwants m/mm | not establishedThe diaphragm details show differing overall heights: 2'-4" on page 7 and 3'-0" on page 9. The readings do not establish which, if either, is the Length required for the marked item 400A; 400A is identified elsewhere as deck reinforcement rather than the concrete diaphragm. | not found | |
| Cross-sectional AreaAwants m2/mm2 | not establishedA 10" diaphragm width is stated, but the associated diaphragm depth is not uniquely established for item 400A: page 7 shows 2'-4" overall beam/diaphragm-section height, while page 9 shows 3'-0" diaphragm-section overall depth. Therefore a single cross-sectional area cannot be derived honestly. | not found | |
| Instance CountNwants count | not establishedThe plan readings provide conflicting diaphragm counts: 3 on page 4, 2 on page 5, and 6 on page 6. In addition, the 400A mark is described in section readings as reinforcement steel, not as the concrete diaphragm. No unambiguous total count for diaphragm item 400A is established. | not found | |
| Material TypeMAT | reinforced concrete -The deck plan identifies the concrete diaphragm as reinforced concrete, and the diaphragm detail also identifies it as reinforced concrete. | read | p4 · p04_r01 title blockp7 · p07_r04 1 cl typ |
| MassMwants kg/t | not establishedNo diaphragm mass, volume, density, or concrete quantity from which mass could be derived is stated in the readings. | not found |
Worked out by openai/gpt-5.6-terra-pro from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.
How the sheets named it
Every dimension read for it3
- 10"Diaphragm thicknessp6 · p06_r01 title block
- 10 inDiaphragm widthp7 · p07_r04 1 cl typ
- 10" inDiaphragm widthp7 · p07_r04
Notes on the sheets that carry it
- p2STEEL DIAPHRAGMS - AT CONTRACTOR'S OPTION, STEEL DIAPHRAGMS MAY BE USED IN LIEU OF THE CONCRETE DIAPHRAGMS SHOWN IN THE PLANS.
- p2AT A MINIMUM, STEEL DIAPHRAGMS ARE TO BE DESIGNED AT STRENGTH LIMIT STATE III WITH A THREE SECOND GUST WIND SPEED OF 140MPH APPLIED TO ONE HALF OF THE VERTICAL SURFACE AREA OF THE EXPOSED BEAM USING EXPOSURE CATEGORY D.
- p2CROSS FRAME CONFIGURATIONS SHALL HAVE A HORIZONTAL ANGLE OR CHANNEL AT EITHER THE TOP OR BOTTOM POSITION.
- p2STEEL DIAPHRAGMS SHALL BE MANUFACTURED BY A FABRICATOR LISTED ON QPL 60 PER SECTION 501 OR GREATER STEEL.
- p2ALL COMPONENTS OF THE STEEL DIAPHRAGM SHALL BE GALVANIZED ACCORDING TO ASTM A123.
- p2CONNECTION BOLTS SHALL CONFORM TO ASTM F3125 (GRADE A325).
- p2NUTS SHALL CONFORM TO ASTM A563.
- p2WASHERS SHALL CONFORM TO ASTM F436.
- p2ALL HARDWARE SHALL BE GALVANIZED ACCORDING TO ASTM A153.
- p2STABILITY OF THE BEAMS AND STRUCTURE DURING ALL PHASES OF CONSTRUCTION ARE THE SOLE RESPONSIBILITY OF THE CONTRACTOR.
- p2SUBMIT SHOP DRAWINGS AND CALCULATIONS FOR THE STEEL DIAPHRAGMS TO THE ENGINEER FOR REVIEW AND ACCEPTANCE.
- p2THE USE OF STEEL DIAPHRAGMS SHALL BE INCLUDED IN THE PRICE BID FOR "LUMP-SUPESTR CONCRETE."
- p43'-0" ENDWALL OUTSIDE EXTERIOR BEAM, TYP.
- p48" FILLET, TYP.
- p4B.F.P.R. BENT 1
- p412" PAVING REST
- p41'-6" ENDWALL
- p41'-0" EDGEBEAM, TYP.
- p410" CONCRETE DIAPHRAGM, TYP.
- p481°-20'-05.0", TYP.
- p4CONSTRUCTION CL SR 21
- p481°-20'-05.0"
- p4FENCE POST SPACING
- p4END POST
- p52'-0" MIN. LAP
- p6B.F.P.R. BENT 4
- p6CONSTRUCTION ℄ SR 21
- p6PGL WESTBOUND
- p6PGL EASTBOUND
- p6N 83°-43'-21.7" E
- p7DIMENSION "D" IS MEASURED FROM TOP OF SLAB TO TOP OF BEAMS AT CENTERLINE BEARING. VARY "D" BETWEEN BEARINGS TO COMPENSATE FOR DEAD LOAD DEFLECTION, AND VERTICAL CURVE.
- p7MAINTAIN A CONSTANT SLAB THICKNESS OF 7 3/4" BETWEEN BEAMS AND 8" IN THE OVERHANGS.
- p7"D" = 8 3/4" INTERIOR BEAMS
- p7"D" = 9 1/8" EXTERIOR BEAMS
- p7FENCE NOT SHOWN, TYP.
- p7502 AT EVERY 500A, TYP.
- p730-400A SPACED AS SHOWN
- p7500A AT 6 1/2"
- p7501 UNDER EVERY 500A
- p7REQUIRED CONSTRUCTION JOINT PARALLEL WITH DECK, TYP.
Every crop it was read in — the drawing beside what the model took off it
Page 2
p02_r07 listed on qpl 60 per section 501 or greaNotes
- Diaphragmstructural steel (alternative) / concrete (as shown in plans)Steel diaphragms may be substituted for concrete diaphragms at contractor's option, subject to design and material requirements stated in the note.
140 MPH three second gust wind speed
Page 4
p04_r01 title blockPlan
- Diaphragm400A×3rectangular strip, perpendicular to beamsreinforced concreteLabeled '10" CONCRETE DIAPHRAGM, TYP.', shown crossing beams at intervals, callout '400A' repeated twice (once per span)
55'-0" ft-in Overall deck width (top span)18'-4" ft-in Segment width9'-6" ft-in Beam spacing6'-6" ft-in End segment1'-0" ft-in Edge offset40'-0" ft-in Gutter to gutter width43'-7" ft-in Out to out width1'-9 1/2" ft-in Offset from gutter to out+27 more
p04_r01Plan
- Diaphragm×6transverse, rectangularconcrete10" concrete diaphragm, typ.; three transverse lines shown per bridge deck
55'-0" ft-in Overall deck width18'-4" ft-in Panel spacing9'-6" ft-in Bar spacing6'-6" ft-in End spacing1'-0" ft-in Edge offset5'-0" ft-in Bearing pad spacing8" in Fillet thickness10" in Diaphragm thickness+22 more
Page 5
p05_r01 out to outPlan
- Concrete diaphragm×2transverse strip, rectangular in planconcreteShown as "10" CONCRETE DIAPHRAGM, TYP." crossing beams in both deck panels
82'-0" ft-in Overall deck length82'-0" ft-in Overall deck length16'-4 1/2" ft-in Bay spacing16'-6" ft-in End bay spacing9'-6" ft-in Sub-spacing9'-10 1/2" ft-in Sub-spacing3'-0" ft-in Edge offset2'-0" ft-in Edge offset+12 more
p05_r01Plan
- concrete diaphragmtransverse stripconcretelabeled '10" CONCRETE DIAPHRAGM, TYP.' at multiple locations between beams
82'-0" overall deck width16'-4 1/2" panel spacing16'-6" end panel spacing9'-6" sub-spacing9'-10 1/2" sub-spacing (alt row)3'-0" end offset2'-0" end offset (alt)1'-0" end offset (alt)+12 more
Page 6
p06_r01 title blockPlan
- Concrete diaphragm×6rectangular, transverseconcreteLabeled '10" CONCRETE DIAPHRAGM, TYP.'; shown between beams at intermediate locations, three per deck half
55'-0" Overall deck width, top deck18'-4" Beam bay spacing (3 bays)6'-6", 9'-6", 9'-6", 9'-6", 9'-6", 9'-6" Fence post spacing sequence1'-0" End dimension81°-20'-05.0" Skew angle10" Diaphragm thickness8" Fillet dimension1'-0" Edgebeam width+20 more
p06_r01Plan
- Concrete diaphragm400A×2transverse, 10" thickreinforced concreteTypical diaphragm between beams, shown at midspan of each roadway; tag 400A appears once per roadway.
55'-0" ft-in Overall deck width18'-4" ft-in Segment width6'-6" ft-in Fence post spacing9'-6" ft-in Fence post spacing1'-0" ft-in Fence post spacing (end)5'-0" ft-in Post bracket spacing81°-20'-05.0" degrees-min-sec Skew angle10" in Diaphragm thickness+33 more
Page 7
p07_r01 section thru slabCross Section
- Diaphragm×5rectangular, cast between beamsreinforced concreteshown in lower 'SECTION THRU DIAPHRAGM' view, between each pair of adjacent beams
43'-7" Out to out width40'-0" Gutter to gutter width34'-0" Width dimension22'-0" Right side offset14'-2 1/2" Right side offset6'-0" Right shoulder/lane width1'-8" Overhang width1 1/2" Edge offset+19 more
p07_r04 1 cl typDetail
- Concrete diaphragm×1rectangularreinforced concreteShown in cross section between beams, labeled 10" CONC. DIAPH.
10 in Diaphragm width2 in Top clearance2'-4" ft-in Overall height dimension1 1/2 in Clear cover, typical1 in Plain bar diameter
p07_r01Cross Section
- Diaphragm×5rectangularreinforced concreteintermediate diaphragms between beams, shown in second section view
7 3/4 in Slab thickness between beams8 in Slab thickness in overhangs8 3/4 in Dimension D, interior beams9 1/8 in Dimension D, exterior beams22'-0" Overall width43'-7" Out to out width14'-2 1/2" Right side width40'-0" Gutter to gutter+25 more
p07_r04Detail
- Concrete diaphragm×1rectangularreinforced concrete10" wide diaphragm at beam, with reinforcement cage detailed
2 in Top cover2'-4" ft-in Overall height10" in Diaphragm width1 1/2" in Clear cover1" in Plain bar diameter
Page 9
p09_r01 section thru slabCross Section
- Diaphragm×5rectangular between beamsreinforced concreteshown in Section Thru Diaphragm, with reinforcement 7-403B, 4-402B, 2-507B
43'-7" Out to out width40'-0" Gutter to gutter width34'-0" Width between fence lines22'-0" Distance from PGL to edge6'-0" Distance PGL to point3'-0" MIN. Min shoulder/clear width1'-8" Edge overhang dimension1 1/2" Edge thickness+22 more
p09_r03 detail aSection
- Diaphragm×1rectangularreinforced concrete10" concrete diaphragm, Section thru diaphragm, Span 2
8 in width1'-0 1/2 width1'-0 1/2 width8 in width4 in clearance8 in depth18 in spacing1 1/2 in clearance+14 more
p09_r01Cross Section
- Diaphragm×5rectangularreinforced concreteshown between beams in Section Thru Diaphragm, with 7-403B bars at equal spaces and 1" diameter plain bar
43'-7" Out to out width40'-0" Gutter to gutter width34'-0" Width between beams 1-622'-0" Half width to PGL6'-0" Distance to lane edge1'-8" Overhang edge dimension1 1/2" Edge thickness7 3/4" Slab thickness (between beams)+18 more
p09_r03Detail
- Diaphragm×1rectangularreinforced concreteSection thru diaphragm, Span 2, 10" concrete diaphragm
8 in width1'-0 1/2 ft-in width1'-0 1/2 ft-in width8 in width4 in clearance8 in depth1 1/2 in clearance1'-0 ft width+12 more
Page 10
p10_r04 tighten diaphragm bar as per sub sectionDetail
- Beam / diaphragm concrete section×2rectangularreinforced concretetwo concrete faces shown with a break line, representing beam webs at diaphragm location
1 in Clear distance3 in Width2 in Hole diameter5 in Diameter4-351 AT 4" in Reinforcement spacing/count1 in Diaphragm bar diameter5 in Threaded length1/4 x 3 1/2 in Washer thickness x diameter+1 more